Probing composition and interfacial interaction in oxide passivated core-shell iron nanoparticles by combining x-ray absorption and magnetic circular dichroism

被引：34
作者：
Fauth, K [1 ]
Goering, E
Schütz, G
Kuhn, LT
机构：
[1] Univ Wurzburg, D-97074 Wurzburg, Germany
[2] Niels Bohr Inst Astron Phys & Geophys, Orsted Lab, DK-2100 Copenhagen O, Denmark
来源：
JOURNAL OF APPLIED PHYSICS | 2004年 / 96卷 / 01期
关键词：
D O I：
10.1063/1.1759792
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present x-ray absorption and x-ray magnetic circular dichroism studies of iron oxide passivated iron nanoparticles. The combination of measurements with different probing depths allows us to determine the oxide composition while the magnetic data reveal the magnetic interactions across the interface between the alpha-Fe core and the spin canted ferrimagnetic iron oxide shell. These studies shed light on the mechanisms that govern the magnetic properties of core-shell nanoparticles. (C) 2004 American Institute of Physics.
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页码：399 / 403
页数：5
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